# What We Do? SentrySol is an AI-native, on-device behavioral security framework meticulously engineered to safeguard your digital assets and interactions within the rapidly expanding Web3 mobile ecosystem. In a world where mobile devices are the primary gateway to decentralized applications (dApps) and digital finance, SentrySol acts as your silent, intelligent guardian, ensuring user trust and asset safety at the session level. The Web3 landscape, while promising decentralization and user empowerment, has unfortunately become a fertile ground for sophisticated threats. Traditional security measures are proving insufficient against prevalent attacks like phishing, malicious smart contract calls, zero-day social engineering, and the critical vulnerability of "blind signing." These threats have led to billions in losses and significantly eroded user confidence, hindering mainstream Web3 adoption. SentrySol directly addresses these critical security deficiencies. Our solution is built on the premise that genuine user intent has a unique behavioral fingerprint, and any deviation from this pattern signals danger. By continuously analyzing user behavior in real-time, SentrySol proactively detects and neutralizes threats *before* fraudulent transactions occur. Our core functionalities include: * **Federated Anomaly Detection Engine**: Utilizes lightweight, TinyML-compatible AI models (including transformers for sequential analysis and Graph Neural Networks for dApp interaction flows) to build a baseline of "normal" behavior and identify malicious deviations. * **Real-time User Behavior Monitor**: Continuously observes various behavioral signals—such as transaction timing, touch cadence, gestures, dApp interaction sequences, and wallet signing behavior—to construct a dynamic profile of normal user interaction. * **Signature Validator and Phishing Interceptor**: Crucial for preventing "blind signing" by contextually validating signature requests, cross-referencing user intent with the actual payload, and actively preventing malicious transactions. * **Trusted Execution Environment (TEE) Interface**: Deeply integrates with secure hardware enclaves like Solana Mobile's SeedVault, providing hardware-level protection for critical security operations, sensitive data, and tamper-proof AI decisions. SentrySol's technological foundation rests on three core pillars: AI-Native and On-Device Processing, Privacy-Preserving Federated Learning, and Hardware-Level Security. These pillars collectively ensure a robust, efficient, and user-centric security solution for the Web3 mobile ecosystem. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://cognihash.gitbook.io/sentrysolsec/overview/what-we-do.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.